The windings of a DC motor have a resistance of 6.00 ?. The motor operates on 120 V AC, and when running at full speed it generates a back emf of 105 V. What current does the motor draw when operating at full speed?
A)
2.50 A
B)
5.00 A
C)
17.5 A
D)
20.0 A
E)
37.5 A
A
You might also like to view...
The protons and neutrons that make up normal matter belong to a family of subatomic particles called _____
A) embryons B) tachyons C) rayons D) baryons
Two slits are illuminated with red light (? = 650 nm). The slits are 0.25 mm apart and the distance to the screen is 1.25 m. What fraction of the maximum intensity on the screen is the intensity measured at a distance 3.0 mm from the central maximum?
A. 0.94 B. 0.92 C. 0.96 D. 0.98 E. 0.99
What different resistances can be obtained by using two 2.0-? resistors and one 4.0-? resistor? You must use all three of them in each possible combination
What will be an ideal response?
If your automobile runs out of fuel while driving, the engine stops. You don't come to an abrupt stop due to
A) inertia. B) gravity. C) resistance. D) the principle of continuation.